Rotary pump



F. l. GETTY ROTARY PUMP March 10, 1931.

Filed April e, 1926 5 Sheets-Sheet l gnuan o1:

@gvd-www? attoiwuf March 10, 19.31. F l, GETTY y1,795,552

ROTARY PUMP Filed.Apri1 6, 1926 5 Sheets-Sheet 2 atto: auf

March 10, 1931. F GETTY 1,795,552

ROTARY PUMP Filed April 5, 1926 5 Sheets-Sheet 3 f 2 www.

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March l10, 1931.

F. l. GETTY ROTARY PUMP Filed April 6, 1926 5 Sheets-Sheet 4 invaden@Morue 1th zal:

March 10, 1931. F. l. GETTY ROTARY PUMP Filed April 6, 1926 5Sheets-Sheet 5 fw WW ano: up

Patented Mag. iofn'ael` UNITED ASTA TES PATENT oFFlcE rm I.` en'r'rr, ormunies, LoUIsIANn as an object the provision o a rotary pump to be usedin wells. The main object of the invention is tov rovide a ty'pe, w ichis simple, eilicient and durable; one which is easy to install or removefrom the well, and which is positive and depend-v able in its operation,and designed to be standardized in all its parts with reference tointerchangeability.

A further obJect ofthe inventionl is to rovide ample supportfor thedriving sha o the pump ulley, and a lubricating system or means forubricating all of the bearings of the pump, while running, from onelubricator.

A further object of the invention is the provision of a pump cage seatedin the lower end of the pit u on an mclined seat to lessen the liabilityof oreign matter being caught upon is removed.

the seat when the pum P the invention is the A further object oprovisionof a pump cage having means to prevent rotation in the pit. Afurther object of he provision of a gasketvbetween the pum and the pitwhich will be surely remove the cage when the latter is removed.

A further object of the invention istthe provisionof a pump havin acasing f oritsshaft to prevent access of. oreign matter to the bearingsof the shaft.4 f I A further object ofthe invention is the 35 provisionof a readily removable drive head provided with eicient lubricatingmeans.

cage with A further object of the invention is the pro'- The inventionrelates to umps and hasv pump of the centrifugal or tur ine both aboveand below the-driving invention is the.

' tion through obiects. of lthe invention will ap-i re 1 is an extensionupward of Figure normar Pour appunti mea April 0,1m. smal n. 1.100.111.

. Figure 2* is an elevation upon. a larger s cale of the pump head andthe upper portion of the pump pit in vertical section,

Figure 2h is a continuation downward of the structure shown in Figure 2showing the lower portion of thepit` partlyl in vertical Isection,

" Filre 3 1s a central vertical sectionupon a stl further enlarged scaleof the drive head and the dome o i Figure 4 is a plan view of the pit, v

the drive head,-

Figure 5. is a horizontal section on line Figure 6 1s a plan view of theupper bearin ofthe drive head, igure 7 isa vertical section f 5-5 ofFigure 3,

of Figure 6 showing the driving shaft in v elevation,

- Figure 8-1s avdetailvertical section show.

ina centering s ider, igure9-is a 9--9 ofFigure 8,

Figure 10 1s a enlarged scale on Figure 11 is a detail vertical sectionon orizontal section on line horizontal', section upon an line 10--10 ofFigure 8,

,Fiure 12 is a modi sections -on lines tively of Figure detail verticalsection of a ed form of'drive head, Figure 13 and AFigure 14 arehorizontal 113 --13 and 14--14 respec- 2,

Figure 15 is a detail central vertical secthe lower portion ofthepumpand pit showing the impeller and impellercage,

. lFigure 16 is a horizontal section on linel 16- 6 of Figure'15', and

like section on line 17-17 v Figure 17 1s a of Figure 15.

As'shown,

the device comprises a casing 20 seated in a well 21 provided withstrainers` 22, said casing'conssting `of sections, the upper of which isconnected to the lower end of a pit base 23, which in turn isvconnectedvto a pit 24 ing to the surface It is preferred casing 20, straine toprevent the thereto.

comprising sections extendof the und. to fill t e well about the rs 22,and pit 24, with gravel free access of quicks'and 1 f 5 v on line 7-7 YAs shown, the invention comprises a pit base 23 for housing the impellerportion of the pump; the pit base being considerably enlarged to providefor the easy delivery of water from the pump. The impeller shown indetail in Figure 15 is indicated generally by 25. The impeller 25 isshown as housed 1n a cage 26 having a screw threaded engagement at.27with a pump base 28.

To prevent rotation of the pump base and cage within the pit base, thepump base is shown provided, upona tapered surface 29, wit ribs 30. Theinwardly tapered portion of the pit base 31 is also provided with ribsor lugs 32 so that upon the seating of the pump base in the pit base, apartial revolution of the pump base will bring the lugs 30 and 32 intoengagement whereby to prevent further revolution.

In former devices of the nature which is the ,Subj ect of the presentinvention, the pump base is seated upon a seat having horizontalsurfaces and upon its removal sand has been found to collect upon theseat whereby to prevent the reseating of the pump upon its replacementinto the pit. To avoid this diiculty, the invention provides an inclinedfrustro-conical seat 33 in the pit base coactf ing with acomplementalseat 34 carried by the pump base, a gasket 35 being suppliedbetween the surfaces to make a tight joint.

A further defect in some former devices has been that the gasketcorresponding to 35 of the present invention in some cases .remains withthe pit base when the pump is removed, or becomes detached and forms anobstruction to the return of the pump to the pit. To avoid thisdiliculty, according to the present invention the gasket 35 fits at itslower edge in a channel 36 at the base of the frustro conical seat 34extending behind the vertical portion 37 formed upon the pump base.Above the seat 34 the pump base is formed with a vertical cylindricalsurface 38 terminating in a shoulder against which the cylindricalportion 39 of the impeller cage seats. A gasket 40 is desirably providedseated in a channel in the surface of the cylindrical portion 39 of theimpeller cage and desirably placed on an angle in its channel, as shown.

The cage 39 is shown as provided with a series of outlet openings 41between tangential vanes 42 whereby to direct lliquid escaping from theimpeller in a spiral direction to pro vide an upward whirl of theliquid. leaving the impeller, which strikes the curved inner surface 43of the interior of the pit base swell, directing the liquid upwardlywith a minimum of obstructive eddies.

A cover for the impellercage is shown in the form of a plate 44 having aflange 45 seated upon the upper portion of the upper horizontal shoulder46 of the impeller cage and having screw threaded engagement at 47 withthe opening in the top of the impeller cage.

The cover 44 is shown as provided with af 4sleeve 48 projecting upwardlyfrom the plate 44 and having a screw threaded extremity 49 connectingwith a reducing couphng 5() whichin turn is internally screw threadedfor connection to the lower end of a shaft casing 51.A f

A sleeve of bearing material 52 is provided tting within the sleeve 48and having an annular flange 53 seated upon the upper edge of the sleeve48. The sleeve 52 is shown providing a bearing for the lower end 54 ofthe pump shaft 55.

The pump shaft 55 is shown as secured to the impeller 25 bygmeans of apin 56 and also by means of a key 57.

The pump shaft 55 and the shaft casing 51 are shown in the form ofsections coupled together to provide the length necessary to reach to oradjacent to the surface of the ground.

The upper end of the pit casing 24 is shown as terminating in a flange58 coacting with the flange 59 upon the pit dome 60. As shown in Fig. 5the flanges may be screwed together `by means of bolts 6l. An outlet forthe pump is shown in the dome 60 at 60. The upper portion of the dome 60is shown as provided with a' horizontal annular surface 62 forming aseat for a flange 63 formed upon the drive head which may be bolted tothe dome as by means of bolts 64. The lower portion ofthe drive head isformed as shown with a cylindrical surface 65 entering the upper openingof the pit dome and a tapering portion 66 projecting into the dome toprovide an extension of the bearing surface and to direct liquiddelivered by the pump away from the casing.

The upper end of the shaft casing 51 has screw threaded engagement withan enlarged sleeve 67 and a bearing sleeve 68 fitting tightly` withinthe lower end of the drive head telescopes with the sleeve 67, astuffing box 69 being provided upon the upper end of the sleeve 67 tomake the joint between sleeves 67 and 68 impervious. Carried within thelower end of the sleeve 68 is a bearing 70 for the pump shaft. Fordriving of the pump shaft there is shown a pulley 71 held firmly on theshaft at 72, 73, by set screws and also f secured against revolutionthereon by means of a key 74. Revolving with the shaft there is also anupper thrust bearing 75 having engagement with the key 74 and providedwith a ball race 76 seated in an annular rabbet upon its lower surface.The weight of the pump shaft and impeller is borne by the thrust bearingcomprising the race 76, balls 77, 78, and the intermediate race 79 andalower race 80. The lower race 8O is shown as supported by means of anannularange 81 preferably formed integrally with the sleeve 81 andshownas formed with an up- 85 havin screwthreaded engagement therewithand av-ing a collar 86 closely surroundmg a ring 87 below the hub of thepulley 71. The pulleyv 71 is shown as confined by a `collar 88 held inplace by a set screw 89v and adjustable for height upon screw threads90.

vTo hold an upper bearing for the drive h ad, the base 63 thereof isshown provided ith an upwardly extending integral arm 91 having aslotted way 92 in its upper portion coacting with a bearing block 93,the parts being secured together by means of a cap screw 94 havingscrewthreaded engagement with the block 93 as shown. The block 93 isprovided with a bearing sleeve 95 having an upper annular flange 96seated ina recess 97 in the block, which recess may be closed by meansof a screw cap 98. An inner sleeve of i bearing material. 99 isdesirably provided within the bearing sleeve 95.

To lubricate the pump there is shown an oil cup 100 communicating with achannel 101 leading to the recess 97. Also to provide a flood oflubricant when the pump is first started, there is shown a plug 102which may be opened and an excessof lubricant admitted. Oil introduced,into the recess 97 through channel 101 is led to the upper beari'ng bymeans of tangential channels 103 in the upper horizontal surface of theflange 96 which channels terminate tan entially at the surface of theshaft. It isl ound that this form of channel is very much more efficientin deliverin oil tothe shaft than are radial channels. o preventrotation of the bearing downwardly through the ing screwthreadedengagement with the portion 106 of the upper bearing plug. To deflectoil from the drive shaft to the interior of the cup 105, an apron 107 isshown screwed upon a tapered portion of the drive shaft and having itscylindrical portion depending below the upper edge of the upwardlyextend-v ing inner edge 108 of the cup 105. An outlet from the cup isshown in the form of a conduit 109 secured to the cup 105 lby means of aunion 110. Conduit 109 is turned downwardly and telescopes with avertical conduit l lllpreferably housed in a channel in the arm 91 andentering a vertical channel 112 in said arm, which latter channelcommunicates with the horizontal channel 113 leading to the thrustbearingrecess 84. A- second lubricating cup 114 is provided, beingscrewed into an outward opening of the channel 113.

To re-f finally escapeAvith the liquid delivered by the pump.

To provide bearings for the drive shaft at intervals within the casing51, bearings 115 are shown, each formed with a surface channel 116provide-d with a rib 117 as shown particularly in Figure 10. To locatethe bearings 115 in vertical spaced relation and tov prevent theirrotation within the shaft casing, they are placed in the desiredposition and the shaft casing 51 is indented as shown at 118 by a blow.The indentation by coaction with the upper or lower terminus of thechannel 116 will prevent'vertical displacement of the bearing and bycoaction with the rib 117, as shown in 110, will revent rotationthereof.4 The up er ends of) 115 are preferably ormed with a taperedportion 119 to direct lubricant to the surface of the shaft.

lTo' center the shaft casing 51 in the pit, a

lurality of spiders are provided shown as Joined at a split hub'- 120which ma be clamped on the casing 51 by means of liolts 121.

Projecting from the hub 120 are shown three arms 122, each terminated ina shoe 123. The arms 122 are shown as downwardly inclined and when thepump is to be removed, after being rusted 1n pace, this inclination willassist in the ready 'removal of the spacers from the pump casing.

As shown in Figure 2* the motor power for driving the belt 124 ispreferably located in alignment with the pulley 71 and arm 91, thepulley being of greater diameter than the thickness of the arm the beltmay be placed around the pulley and upon eachside of the.

. power in 'some other location with respect to the outlet 60', thanthat illustrated, the bolts V64 may be removed and the drive head may berevolved to the desired position, after which, different holes in thefiange 63 being in registry with holes in the surface 62, the bolts maybe replaced.

the bearings lia) Figures 12-14, inclusive, there is shown 4 amodificationof the drive head wherein the dome 60 is provided with anextended surface 125 carrying an annular ring 126 having a plurality ofvupwardly and outwardly sloping arms 127, which arms in turn bear a basering 128 to supporta desired motor not shown. In this form'of theinventionA the thrust bearing, which is of the nature already described,is housed in a recess 129 closed upwardly by acap 130 and the shaft 55is provided with a collar 131 screwed thereon and secured thereto bymeans of a set screw 132.

A coupling member 133 is shown ke ed and clamped to the shaft by meansof a. ey 134 and a clamping bolt 135, the coupling being split as shownto permit of the clamping action. Ihe coupling member is shown as provided with a pair of clutch recesses 136, 137, and a second clutchmember'138 is provided with a complemental surface to coact therein,which clutch member is in like engagement with \a third clutch orcoupling member 139.` By provision of the plurality of coupling orclutch members shown, an action in the nature of a universal joint isprovided if the motor be slightly out of alignment conduit 109 may befreely swung to one sideV out of the way of the pulley or may betelescopically removed from conduit 111.

Minor changes .may be made in the physical embodiment of the inventionwithout departing from its spirit.

What I claim:

1. A rotary pump comprising in combina.- tion, a pit, aninteriorly'enlarged base for said pit, a pump base seated in said pitbase, the engaging surfaces of said seat being inclined to the axis ofthe pit to define a frustoconical surface, means to prevent rotationbe-f tween said pit base and pump base, a gasket carried by the pumpbase to prevent passage of water through said seat an impeller housingsecured to said pump base, an impeller rotatably mounted in saidhousing, a drive shaft secured to said impeller, and extending axiallyof said pit and Vdrive means upon said shaft exterior of the pit.

2. A rotary pump comprising in combination, a pit, an interiorlyenlarged base for said pit, a pump base seated in said pit base, theengaging surfaces of said seat being inrlued to the axis of the pit todefine a frustoconical surface, interlocking means to prevent clockwiserotation between said pit base aud pump base, a gasket carried by thepump base to prevent passage of water through said seat, an impellerhousing secured to said pmup base, an impeller rotatably mounted iu saidhousing, a drive shaft secured to said i impeller and extending axiallyof said pit, au arm supporting a bearing for said shaft exterior of thepit, drive means upon said -shaft exterior of the pit and means foradjusting thc angularrelation of said arm to .said pit about the axis ofthe shaft. I

2l. A rotary pump comprising in combmation, a pit` an impeller workingin said pit,'a drive shaft for said impeller extending axir ally of thepit, a dome for said pit, a journal for said shaft in said dome, an armprojecting from said dome parallel with said shaft,

Ato supply lubricant to said sleeve comprising channels in the endsurface thereof discharging to the shaft at a tangent thereto.

4. A rotary pump comprising in combination a pit closed at its upper endand provided with a lateral discharge for water, an impeller working insaid pit, a drive shaft for said impeller, a drive pulley mounted onsaid shaft, a journal bearing below said pulley, anarm extending upwardfrom the housing of said journal bearing, a vertically adjustablebracket attached to said arm, a shaft bearing mounted in said bracket,means to supply lubricant to said bearing, a drip cup below the bearing,means for diverting lubricant from the shaft to the cup, a delivery pipeor conduit attached to said cup, the said bracket and the entire groupof elements `mounted thereon, including lubricators, shaft I bearlng,drip cup, and delivery pipe, being vertically adjustable with saidbracket.

5. A rotary pump comprising in combination, a pit closed at its upperend provided with a lateral discharge for water, an impeller working insaid pit, a drive shaft for said impeller, a drive pulley mounted onsaid shaft, a journal bearing below said pulley having a housing, acasing for said drive shaft having connection with said housing, animpeller bearing at the lower end of said casing, an arm extendingupward from the housing of said journal bearing, a vertically adjustablebracket attached to said arm, a shaft bearing mounted in said. bracket,means to supply lubricant to said bearing, a drip cup surrounding saidshaft, located under said bearing, an apron attached to said shaftdepending within said cup, telescopin'g conduits, one communicating withsaid cup, the other communicating with the bearing below said pulleywhereby provision is made for continuous travel of lubricant from thepoint where it is supplied .to the upper bearing, around the drivepulley to the bearings below and then on down the pump shaft casing andout at the lower end of the impeller bearing.

- 6. A rotary pump comprising in combination, a pit base and acylindrical pit permanently installed in the ground, pump mechanismremovable therefrom and replaceable therein through said pit consistingof a rotary pump seated on said pit base, a shaft and shaft casingprojecting upward to the surface of the ground, and a series ofindependent spider arms projecting downwardly and outwardly from theshaft casing and freely engaging the surface of the pit, said spiderarms being secured to said shaft casing and preserving the desiredalignment by contact with the pit surface whereby the `a rms may springin a collapsing-direction topermit o; ready withdrawal ofthe shaftcasing from t e pit.

7. A rotary pump comprising in combination, a pit, an impeller workingin said p-it, a. drive shaft for said impeller, a dome for said pitcarrying a journalfor said shaft, an arm projecting upwardly from saiddome in spaced parallel relation to said shaft, a thrust bearing mountedupon said dome in a recess therein, a lubricant channel delivering tosaid recess, a conduit delivering to said channel, an upper bearingcarried b-y said arm, means to supply lubricant to said upper bearing.,a drip cup carried by said upper bearing surrounding said shaft, meansto divert lubricant from the surface of said lshaft to `said cup, and aconduit connected to said cup and telescoping with said first namedconduit whereby upon disconnection of said cup and conduit and removalof said upper bearing said conduit may be freely swung aside.

8. A rotary pump comprising in combination, a pit, an impeller housingseated in said pit, an impeller rotatably mounted in said housing,a-drive shaft secured to said impeller and extendin axially of said'pit,a casing secured to sai housing and surround- Y ing said shaft, analignment bearing in said casing surrounding said shaft, said bearinghaving a peripheral recess, a rib extending vlongitudinally of saidrecess, means to prevent displacement of said bearing within said casingcomprisingan inward projection upon the interior of said casingextending into said recess and coasting with said rib to preventrotation of the bearing.

9. A rotary pump comprising, in combination, a pit, an enlarged pitbase, the inner surface of said base being substantially iush at its,upper end with the inner surface of the pit yand curving downwardly andoutwardly to, then downwardly and inwardly from the ,line of greatestdiameter, an impeller housing seated in said base of less diameter thansaid pit and removable and insertable therethrough, said housing havingoutlets the lowl er portions thereof substantially iush with theterminus of the inwardly curved vsurface of the interior of said base,an impeller revolubly mounted in said housing and a drive s shaftsecured to` said Vimpeller and extending upwardly through said pit.

\ 10. A rotary pump comprising, ,lin combination, a pit, an enlar ed pitbase, the inner surface of said base bemg substantially flush at itsupper end with the inner surface of the pit and curving downwardly andoutwardly with said zone and the upper portions thereof substantially inthe plane of said line of greatest diameter, an impeller revolublymounted in said housing and a drive shaft secured to said impeller andextending upwardly through said pit.

' FRED I. GETTY.

to, then downwardly and inwardlyfrom the line of greatest ldiameter to azone approachin the normal to the axis of the fpit, an impe ler housingseated in saidpit o less diam- .eter than said pit and insertableandremov'- 'able through the pit, said housing having outletssubstantially flush at their lowr'portions

